Abstract:

Bowman layer transplanation (BLT) is a minimally invasive treatment protocol that uses Technique I and Technique II to extract an isolated Bowman layer (BL) that is slid into receptor substrate layer inside the pocket after trypan blue staining. BLT improves corneal stability and prevents corneal expansion. The keratoconus (KC) is a congenital anomalous disease characterized by a conical expansion of the central cornea, which in turn causes a decrease in vision. BLT was used to prevent the progression of advanced KC. The aim was not to improve visual acuity and maintain functional vision, but to reduce the occurrence of serious complications after surgery. The result showed significant curative effect. BLT could effectively strengthen the stability of the corneal structure and reduce long-term complications. In the treatment of corneal opacity after excimer laser photorefractive keratectomy (PRK), BLT can improve vision. （Int Rev Ophthalmol, 2018, 42: 367-371）